2020 Lexus LC500 door lock

3036-3. Do-it-yourself maintenance
6
Maintenance and care
LC500hThe 12-volt battery is located in the
trunk.
■Before recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon-
nect the ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12-
volt battery
●Unlocking the doors using the smart
access system with pu sh-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
●Start the engine with the
engine switch in ACCES-
SORY mode. The engine tem> may not start with the engine switch
turned off. However, the
engine will operate nor-
mally from the second attempt.
●The engine switch mode
is recorded by the vehicle. If the 12-volt
WARNING
■When adding washer fluid
Do not add washer fluid when the engine
is hot or running ating> as washer fluid contains alcohol
and may catch fire if spilled on the engine
etc.
NOTICE
■Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

3597-2. Steps to take in an emergency
7
When trouble arises
the filler opening due to air being dis-
charged from inside the fuel tank.
Therefore, fill the fuel tank carefully and
slowly.
■When the electronic key does not work
properly
●Make sure that the smart access system
with push-button start has not been deac-
tivated using the Remote Touch or at your
Lexus dealer. If it is off, turn the function
on.
●Check if battery-saving mode is set. If it is
set, cancel the function. ( P.117)
Use the mechanical key ( P.106) in
order to perform th e following opera-
tions:
WARNING
■After opening the fuel filler door
Make sure to put back the cover to the
center of the rear seat. Failure to do so
may cause an accident.
NOTICE
■After opening the fuel filler door
●Secure the tab in its original position.
●Install the tab so that it does not cover
the clip installation position . Fail-
ure to do so may cause damage to the
clip and make it impossible to install
the cover.
A
If the electronic key does not
operate properly
If communication between the
electronic key and vehicle is inter-
rupted ( P.117) or the electronic
key cannot be used because the
battery is depleted, the smart
access system with push-button
start and wireless remote control
cannot be used. In such cases, the
doors and trunk can be opened and
the engine can be
started by following the procedure
below.
NOTICE
■In case of a smart access system with
push-button start malfunction or
other key-rela ted problems
Take your vehicle with all the electronic
keys (including the card key) provided
with your vehicle to your Lexus dealer as
soon as possible.
Locking and unlocking the
doors, opening the trunk and
using the key linked functions

3607-2. Steps to take in an emergency
■Locking and unlocking the door
1 Push in the depression on the front
edge of the driver’s door handle.
2 Insert the mechanical key while
pulling on the driver’s door handle.
3 Turn the key in order to perform the
following operations.
Locks both side doors
Closes the windows (turn and
hold)
*
Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key once again
within 5 seconds unlocks the other door.
Opens the windows (turn and
hold)
*
*: These settings must be customized at
your Lexus dealer.
■Opening the trunk
Unlock the doors, and press the trunk
opener switch.
1 Depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the engine switch
.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON
mode .
When the smart access system with push-
button start is deactivated in customization
setting, the engine switch
A
B
C
D
WARNING
■When using the mechanical key and
operating the power windows
Operate the power window after check-
ing to make sure that there is no possibil-
ity of any passenger having any of their
body parts caught in the window.
Also, do not allow children to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window.
Starting the engine tem>

3617-2. Steps to take in an emergency
7
When trouble arises
will turn to ACCESSORY mode.
3Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4 Press the engine switch switch>.
In the event that the engine tem> still cannot be started, contact
your Lexus dealer.
■Stopping the engine
Set the parking brake, shift the shift position
to P and press the engine switch switch> as you normally do when stopping
the engine .
■Electronic key battery
As the above procedure is a temporary
measure, it is recomme nded that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( P.322)
■Changing engine switch
modes
Release the brake pedal and press the
engine switch in step 3
above.
The engine does not start
and modes will be changed each time the
switch is pressed. ( P.150, 154)
Use the mechanical key ( P.106) in
order to perform th e following opera-
tions:
■Locking and unlocking the doors
 P.359
■Opening the trunk
1 Slide the rear passengers’ seat
belts towards the outside.
2 Insert your fingers at the positions
marked and pull towards you to
If the 12-volt battery is dis-
charged
The following procedures may be
used to start the engine tem> or opening the doors, trunk or
glove box if the 12-volt battery is
discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Locking and unlocking the doors
and opening the trunk
A

3627-2. Steps to take in an emergency
remove the cover in the center of
the rear seat.
3 Insert the mechanical key into the
cylinder and turn it clockwise to
open. The glove box can be opened by per-
forming the following
operations after
unlocking the doors.
If the glove box is locked, unlock it with the
mechanical key. ( P.264)
1 Remove the cover using a flathead
screwdriver.
To prevent damage to the cover, cover the
tip of the screwdriver with a rag.
2Push the flathead screwdriver into
the part shown in the illustration to
open the glove box.
■After opening the glove box
The glove box can be opened normally by
closing the glove box after restarting the
engine .
If you have a set of jumper (or booster)
WARNING
■After unlocking the trunk
Make sure to put back the cover to the
center of the rear seat. Failure to do so
may cause an accident.
NOTICE
■When installing the cover in the cen-
ter of the rear seat
Make sure that the seat belts are not
caught in the cover. Failure to do so may
cause damage to the cover installation
clip and make it impossible to install the
cover.
Opening the glove box
Restarting the engine system>

3637-2. Steps to take in an emergency
7
When trouble arises
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle using the following procedure.
1Confirm that the electronic key
(including the card key) is being
carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked.
( P.71)
2 Open the hood ( P.294) and
open the fuse box cover.
Push the tab in and lift the lid off.
LC500
LC500h
3 Open the exclusive jump starting
terminal cover.
LC500
LC500h
4 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cable to on the second vehicle.
Then, connect a negative cable clamp to on the second vehicle and con-
nect the clamp at the other end of the negative cable to .
A
B
C
D

3657-2. Steps to take in an emergency
7
When trouble arises
of your vehicle by
turning the engine switch switch> to IGNITION ON mode
.
8 Once the vehicle’s engine system> has started, remove the
jumper cables in the exact reverse
order from which they were con-
nected.
9 Close the exclusive jump starting
terminal cover, and reinstall the fuse
box cover to its original position.
Once the engine starts,
have the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the engine
when the 12-volt battery is discharged
The engine cannot be
started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is
stopped.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■When the 12-volt battery is removed or
discharged
●Information stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
●Some systems may require initialization.
(  P.407)
■When removing the 12-volt battery ter-
minals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the 12-
volt battery terminals, contact your Lexus
dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradually even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the engine
may be unable to start. (The 12-volt battery
recharges automatically during driving.)
■When recharging or replacing the 12-
volt battery
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
●The engine may not start
on the first attempt after the 12-volt bat-
tery has recharged but will start normally
after the second attempt. This is not a
malfunction.
●The engine switch mode
is memorized by the vehicle. When the
12-volt battery is reconnected, the system
will return to the mode it was in before
the 12-volt battery was discharged.
Before disconnecting the 12-volt battery,
turn the engine switch off.
If you are unsure wh at mode the engine
switch was in before the
12-volt battery discharged, be especially
careful when reconnecting the 12-volt
battery.
●If the 12-volt battery discharges, it may
not be possible to shift the shift position to
other positions. In this case, the vehicle
cannot be towed without lifting both rear
wheels because the re ar wheels will be
locked. ( P.334)
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt
battery (European Regulations).
●Type A*1: Use a 12-volt battery that the
case size is same as the previous one
(LN4), 20 hour rate capacity (20HR) is
equivalent (80Ah) or greater, and per-
formance rating (CCA) is equivalent
(685A) or greater.

3998-2. Customization
8
Vehicle specifications
*1: If equipped
*2: BSM function only
■Active rear wing* ( P.232)
*:If equipped
■Door lock ( P.108, 112, 359)
Alert timing for presence of
approaching vehicle (sensitivity)
*2
(Intermediate)
(Early)
O(Late)
(Only when in blind
spot)
RCTA buzzer volumeLevel 2Level 1OLevel 3
FunctionDefault settingCustomized setting
Operation of the active rear wingOffOnOO
FunctionDefault settingCustomized setting
Unlocking using a mechanical key
Driver’s door
unlocked in one step, both side
doors unlocked in two steps
Both side doors
unlocked in one step
O
Automatic door lock
Shifting the shift position to
position other than POff
OOVehicle speed is
approximately 12
mph (20 km/h) or higher
FunctionDefault settingCustomized settingABC
ABC
ABC